Designation D4601/D4601M − 04 (Reapproved 2012)´1 Standard Specification for Asphalt Coated Glass Fiber Base Sheet Used in Roofing1 This standard is issued under the fixed designation D4601/D4601M; th[.]
Trang 1Designation: D4601/D4601M−04 (Reapproved 2012)
Standard Specification for
This standard is issued under the fixed designation D4601/D4601M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision A number in parentheses indicates the year of last
reapproval A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
´ 1 NOTE—Units information was editorially corrected in June 2012.
1 Scope
1.1 This specification covers asphalt impregnated and
coated glass fiber base sheet, with or without perforations, for
use as the first ply of the built-up roofing When not perforated,
this sheet is suitable for use as a vapor retarder, with a solid
mopping of asphaltic material, under roof insulation or
be-tween multiple layers of roof insulation
1.2 The values stated in either SI units or inch-pound units
are to be regarded separately as standard The values stated in
each system may not be exact equivalents; therefore, each
system shall be used independently of the other Combining
values from the two systems may result in non-conformance
with the standard
2 Referenced Documents
2.1 ASTM Standards:2
D146Test Methods for Sampling and Testing
Bitumen-Saturated Felts and Woven Fabrics for Roofing and
Waterproofing
D228Test Methods for Sampling, Testing, and Analysis of
Asphalt Roll Roofing, Cap Sheets, and Shingles Used in
Roofing and Waterproofing
D1079Terminology Relating to Roofing and Waterproofing
3 Terminology
3.1 Definitions—For definitions of terms used in this
speci-fication, refer to Terminology D1079
4 Classification
4.1 Asphalt impregnated and coated glass fiber base sheet,
Type I and Type II, are covered by this specification
5 Materials and Manufacture
5.1 The mat shall be a thin, porous mat of uniformly distributed glass fibers, with or without additional reinforcing strands of glass yarn, and bonded with a water-resistant resinous binder
5.2 In the process of manufacture, a single thickness of glass fiber mat shall be impregnated with hot asphalt, coated on one
or both sides with a hot asphaltic material, and permitted to be surfaced with mineral surfacing
5.3 The impregnating and coating material shall be a hot-applied asphalt permitted to be compounded with a mineral stabilizer
5.4 The base sheet may be faced with a kraft paper on the bottom side
6 Physical Requirements, Dimensions, and Masses
6.1 The material shall conform to the physical requirements, dimensions, and masses described in Table 1 andTable 2 It may have small pin holes throughout the sheet
6.2 Perforated material shall conform to the physical re-quirements, dimensions, and masses described inTables 1-3 It may have small pin holes throughout the sheet
6.3 The finished product shall not crack nor be so sticky as
to cause tearing or other damage upon being unrolled at temperatures between 4 and 60°C [40 and 140°F]
7 Workmanship, Finish, and Appearance
7.1 The finished material shall be uniformly impregnated and coated with asphalt It shall be free of visible defects such
as holes, ragged or untrue edges, breaks, cracks, tears, and protrusions This is not to exclude perforations for the specific purpose of providing for venting of gases during application or small pin holes
8 Sampling and Test Methods
8.1 Sample the material and determine the properties de-scribed in this specification in accordance with Test Methods
D228 unless otherwise indicated
1 This specification is under the jurisdiction of ASTM Committee D08 on
Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.04
on Felts, Fabrics and Bituminous Sheet Materials.
Current edition approved May 1, 2012 Published June 2012 Originally
approved in 1986 Last previous edition approved in 2004 as D4601 – 04 DOI:
10.1520/D4601_D4601M-04R12E01.
2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959 United States
1
Trang 28.2 Breaking Strength—Determine in accordance with Test
Methods D146, Section 13 (Specimens must be free from
perforations.)
8.3 Moisture Content—Determine in accordance with Test
Methods D146, Section 12
8.4 Pliability Testing—Test in accordance with Test
Meth-odsD146, except the specimens shall be conditioned as in Test
Methods D146, Strength Section 13.1.1
8.5 Use rule to measure perforation size and spacing
8.6 The percentage of surfacing and stabilizer shall be the
ratio of mass of surfacing and stabilizer to the mass of the
surfacing, stabilizer, and asphalt
9 Inspection
9.1 Inspection—Inspection shall be in accordance with the
requirements of this specification
9.2 Inspection Alternatives—Alternative inspection
require-ments shall be determined by and as agreed upon between the
purchaser and the supplier
10 Rejection and Resubmittal
10.1 Failure to Conform—Failure to conform to any of the
requirements as stated in this specification constitutes grounds for rejection
10.2 Rejection Redress—The supplier shall have the right to
inspect the rejected materials The supplier and the purchaser shall agree to the quantity of rolls deemed unacceptable The supplier shall then have the right to submit the same number of new rolls as replacement
11 Packaging and Package Marking
11.1 Unless otherwise agreed upon between the supplier and purchaser, each product package shall be plainly marked with the supplier’s name, the product brand, the ASTM designation, and type of bitumen if not evident in the label name of the product
11.2 The rolls shall be securely wrapped or banded in a manner that completely encircles the roll and will prevent slipping or unrolling
11.3 No roll shall contain more than two pieces, and no more than 3 % of the rolls in any lot shall contain two pieces
If a roll contains a manufacturing splice, the splice shall be clearly marked
12 Keywords
12.1 asphalt impregnated; base sheet; built-up roof; coated; fiberglass; partially attached; vapor retarder
TABLE 1 Physical RequirementsA
Breaking strength, minimum kN/m
[lbf/in.] longitudinal and transverse
3.9 [22] 7.7 [44]
Pliability, 13 mm [ 1 ⁄ 2 in.] radius
A
To prevent the asphalt glass fiber base sheet from slipping from between the
jaws of the tensile testing machine, insert a thin strip of soft gasket rubber between
the felt in each of the four jaw faces of the machine.
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TABLE 2 Dimensions and MassesA
as agreed between buyer and seller as agreed between buyer and seller
Net dry mass—coated sheet minimum g/m 2 [lb/100 ft 2 ]
Mass of desaturated glass mat, minimum, g/m 2
[lb/100 ft 2
ATest for compliance to this specification prior to application Types cannot be differentiated after installation.
TABLE 3 Dimensions and Hole Spacing Requirements for Perforated Glass Fiber Base Sheet
Spacing of perforations in each row, center to center, mm [in.] 152 [6.0] ± 25 % 152 [6.0] ± 25 %
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